| 提高高铬白口铸铁磨球冲击抗力的技术关键 |
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| 引用本文： | 子澍. 提高高铬白口铸铁磨球冲击抗力的技术关键[J]. 铸造, 2006, 55(1): 60-64 |
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| 作者姓名： | 子澍 |
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| 作者单位： | 北京工业大学材料科学与工程学院,北京,100022 |
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| 摘 要： | 当高铬白口铸铁含铬量为18%～28%,Cr/C值是8￣9,铸铁的显微组织是回火马氏体 少量残余奥氏体(<5%) M7C3碳化物,则磨球具有高的冲击韧性和断裂韧性K1C,具有高的冲击抗力,表现出低的冲击剥落量。
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| 关 键 词： | 高铬白口铸铁 磨球 冲击抗力 冲击韧性 断裂韧性 |
| 文章编号： | 1001-4977(2006)01-0060-05 |
| 收稿时间： | 2005-06-07 |
| 修稿时间： | 2005-08-27 |
Technical Key Points of Improving Impact Resistance of Grinding Ball for High-Chromium White Cast Iron |
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| ZI Shu. Technical Key Points of Improving Impact Resistance of Grinding Ball for High-Chromium White Cast Iron[J]. Foundry, 2006, 55(1): 60-64 |
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| Authors: | ZI Shu |
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| Affiliation: | College of Materials Science and Engineering, Beijing Polytechnic University, Beijing 100022, China |
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| Abstract: | When high-Cr white cast iron contains 18%~28% Cr and Cr/C value is 8~9, the microstructure is tempered martensite little retained austenite (<5%) M7C3 carbide, and high impact toughness, high fracture toughness K1C, and high impact resistance and low spalling rate of grinding balls can be obtained. |
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| Keywords: | high-Cr white cast iron grinding ball impact resistance impact toughness fracture toughness |
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